Home / 720,973.11-1,082,109.69-384,294.18

Finding the Fourth Proportional to 720,973.11, 1,082,109.69 and 384,294.18

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Solution

The fourth proportional to 720,973.11, 1,082,109.69 and 384,294.18 is: 576,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,973.11 : 1,082,109.69 = 384,294.18 : x
  2. Step 2: Convert to fraction form
    720,973.11/1,082,109.69 = 384,294.18/x
  3. Step 3: Cross multiply
    720,973.11x = 1,082,109.69 × 384,294.18
  4. Step 4: Simplify right side
    720,973.11x = 415,848,455,988.60
  5. Step 5: Solve for x
    x = 415,848,455,988.60/720,973.11
  6. Step 6: Final answer
    x = 576,787.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.